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#!/bin/sh
# src/tools/make_ctags [-e] [-n]
# If -e is specified, generate tags files for emacs.
# If -n is specified, don't create symbolic links of tags file.
usage="Usage: $0 [-e][-n]"
if [ $# -gt 2 ]
then echo $usage
exit 1
fi
EMACS_MODE=
NO_SYMLINK=
IS_EXUBERANT=
PROG="ctags"
TAGS_OPT="-a -f"
TAGS_FILE="tags"
FLAGS=
IGNORE_IDENTIFIES=
while [ $# -gt 0 ]
do
if [ $1 = "-e" ]
then EMACS_MODE="Y"
elif [ $1 = "-n" ]
then NO_SYMLINK="Y"
else
echo $usage
exit 1
fi
shift
done
if [ ! "$EMACS_MODE" ]
then (command -v ctags >/dev/null) || \
{ echo "'ctags' program not found" 1>&2; exit 1; }
fi
ctags --version 2>&1 | grep Exuberant && IS_EXUBERANT="Y"
if [ "$EMACS_MODE" ]
then TAGS_FILE="TAGS"
if [ "$IS_EXUBERANT" ]
then PROG="ctags -e"
else (command -v etags >/dev/null) || \
{ echo "neither 'etags' nor exuberant 'ctags' program not found" 1>&2; exit 1; }
PROG="etags"
TAGS_OPT="-a -o"
fi
fi
# List of kinds supported by Exuberant Ctags 5.8
# generated by ctags --list-kinds
# --c-kinds was called --c-types before 2003
# c classes
# d macro definitions
# e enumerators (values inside an enumeration)
# f function definitions
# g enumeration names
# l local variables [off]
# m class, struct, and union members
# n namespaces
# p function prototypes [off]
# s structure names
# t typedefs
# u union names
# v variable definitions
# x external and forward variable declarations [off]
if [ "$IS_EXUBERANT" ]
then FLAGS="--c-kinds=+dfmstuv"
elif [ ! "$EMACS_MODE" ]
then FLAGS="-dt"
fi
# Use -I option to ignore a macro
if [ "$IS_EXUBERANT" ]
then IGNORE_IDENTIFIES="-I pg_node_attr+"
fi
trap "ret=$?; rm -rf /tmp/$$; exit $ret" 0 1 2 3 15
rm -f ./$TAGS_FILE
# this is outputting the tags into the file 'tags', and appending
find `pwd`/ \( -name tmp_install -prune -o -name tmp_check -prune \) \
-o \( -name "*.[chly]" -o -iname "*makefile*" -o -name "*.mk" -o -name "*.in" \
-o -name "*.sql" -o -name "*.p[lm]" \) -type f -print |
xargs $PROG $TAGS_OPT $TAGS_FILE $FLAGS $IGNORE_IDENTIFIES
# Sorting non-Exuberant ctags file allows for fast searching of the tags file.
# Since etags file has a header that we cannot sort in with the other entries
# we skip the sort step.
if [ ! "$IS_EXUBERANT" -a ! "$EMACS_MODE" ]
then LC_ALL=C
export LC_ALL
sort $TAGS_FILE >/tmp/$$ && mv /tmp/$$ $TAGS_FILE
fi
# create symbolic links
if [ ! "$NO_SYMLINK" ]
then find . \( -name 'CVS' -prune \) -o \( -name .git -prune \) -o -type d -print |
while read DIR
do [ "$DIR" != "." ] && ln -f -s `echo "$DIR" | sed 's;/[^/]*;/..;g'`/$TAGS_FILE "$DIR"/$TAGS_FILE
done
fi
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